aid: inflectionio name: Inflection.io description: >- Inflection.io is a B2B marketing automation platform positioned as a modern, AI-native replacement for legacy tools like Marketo. It unifies target accounts, product users, customers, and leads with product-usage, sales, and behavioral signals so marketing teams can build audiences, draft campaigns, map customer journeys, score accounts, and report to the CMO — executing in minutes rather than weeks. The Inflection Developer API is a JSON-over-HTTPS REST API (OpenAPI 3.1, base https://api.inflection.io/v1) for reading and writing the people in a workspace: their profiles, product and marketing activity, static lists, and email templates, authenticated with scoped Personal Access Tokens. Surfaced as a version-one-ventures portfolio company and enriched from the provider's public developer API surface. url: https://raw.githubusercontent.com/api-evangelist/inflectionio/refs/heads/main/apis.yml accessModel: pricing: unknown onboarding: self-serve trial: false try_now: false public: false label: Self-serve signup confidence: medium source: - authentication generated: '2026-07-22' method: derived image: https://www.inflection.io/img/asset/YXNzZXRzL29nLWltYWdlLmpwZw/og-image.jpg x-type: company x-source: vc-portfolio x-backed-by: - version-one-ventures x-tier: enriched x-tier-reason: public-developer-api specificationVersion: '0.20' created: '2026-07-17' modified: '2026-07-19' tags: - Company - Saas - Marketing - Marketing Automation - Email Marketing - Customer Data - B2B - Contacts - API apis: - aid: inflectionio:inflectionio-contact-activity-api name: Inflection.io Contact Activity API description: The Contact Activity API from Inflection.io — 4 operation(s) for contact activity. humanURL: >- https://github.com/inflectionio/mintlify-docs/blob/develop/api-reference/introduction.mdx baseURL: https://api.inflection.io/v1 tags: - Contact Activity properties: - type: OpenAPI url: openapi/inflectionio-contact-activity-api-openapi.yml - type: Documentation url: https://github.com/inflectionio/mintlify-docs/tree/develop/api-reference - type: APIReference url: https://api.inflection.io/docs - aid: inflectionio:inflectionio-contacts-api name: Inflection.io Contacts API description: The Contacts API from Inflection.io — 5 operation(s) for contacts. humanURL: >- https://github.com/inflectionio/mintlify-docs/blob/develop/api-reference/introduction.mdx baseURL: https://api.inflection.io/v1 tags: - Contacts properties: - type: OpenAPI url: openapi/inflectionio-contacts-api-openapi.yml - type: Documentation url: https://github.com/inflectionio/mintlify-docs/tree/develop/api-reference - type: APIReference url: https://api.inflection.io/docs - aid: inflectionio:inflectionio-email-templates-api name: Inflection.io Email Templates API description: The Email Templates API from Inflection.io — 1 operation(s) for email templates. humanURL: >- https://github.com/inflectionio/mintlify-docs/blob/develop/api-reference/introduction.mdx baseURL: https://api.inflection.io/v1 tags: - Email Templates properties: - type: OpenAPI url: openapi/inflectionio-email-templates-api-openapi.yml - type: Documentation url: https://github.com/inflectionio/mintlify-docs/tree/develop/api-reference - type: APIReference url: https://api.inflection.io/docs - aid: inflectionio:inflectionio-lists-and-members-api name: Inflection.io Lists and Members API description: The Lists and Members API from Inflection.io — 4 operation(s) for lists and members. humanURL: >- https://github.com/inflectionio/mintlify-docs/blob/develop/api-reference/introduction.mdx baseURL: https://api.inflection.io/v1 tags: - Lists and Members properties: - type: OpenAPI url: openapi/inflectionio-lists-and-members-api-openapi.yml - type: Documentation url: https://github.com/inflectionio/mintlify-docs/tree/develop/api-reference - type: APIReference url: https://api.inflection.io/docs maintainers: - FN: Kin Lane email: kin@apievangelist.com - FN: APIs.json email: info@apis.io common: - type: Website url: https://www.inflection.io - type: DeveloperPortal url: https://github.com/inflectionio/mintlify-docs/tree/develop/api-reference - type: Documentation url: https://github.com/inflectionio/mintlify-docs/tree/develop/api-reference - type: APIReference url: https://api.inflection.io/docs - type: GettingStarted url: https://github.com/inflectionio/mintlify-docs/blob/develop/api-reference/quickstart.mdx - type: HelpCenter url: https://docs.inflection.io - type: Support url: https://docs.inflection.io - type: Blog url: https://www.inflection.io/blog - type: Pricing url: https://www.inflection.io/pricing - type: SignUp url: https://app.inflection.io/login/start - type: Login url: https://app.inflection.io/login/start - type: TermsOfService url: https://www.inflection.io/legal/terms - type: PrivacyPolicy url: https://www.inflection.io/legal/privacy-policy - type: GitHubOrganization url: https://github.com/inflectionio - type: OpenAPI url: openapi/inflectionio-openapi-original.yml - type: Overlay url: overlays/inflectionio-openapi-overlay.yaml - type: Authentication url: authentication/inflectionio-authentication.yml - type: Conventions url: conventions/inflectionio-conventions.yml - type: ErrorCatalog url: errors/inflectionio-problem-types.yml - type: DataModel url: data-model/inflectionio-data-model.yml - type: Lifecycle url: lifecycle/inflectionio-lifecycle.yml - type: Conformance url: conformance/inflectionio-conformance.yml - type: MCPServer url: mcp/inflectionio-mcp.yml - type: AgentSkill url: skills/_index.yml - type: WellKnown url: well-known/inflectionio-well-known.yml - type: LLMsTxt url: llms/inflectionio-llms.txt - type: AgenticAccess url: agentic-access/inflectionio-agentic-access.yml - type: DomainSecurity url: security/inflectionio-domain-security.yml x-enrichment: date: '2026-07-19' status: backfilled pass: local-v1 note: backfilled from .gitignore signal + verified work evidence